diff --git a/simulation/traffic_simulator/src/entity/ego_entity.cpp b/simulation/traffic_simulator/src/entity/ego_entity.cpp
index 5589bebd7f2..f64eb3ce327 100644
--- a/simulation/traffic_simulator/src/entity/ego_entity.cpp
+++ b/simulation/traffic_simulator/src/entity/ego_entity.cpp
@@ -96,7 +96,7 @@ auto EgoEntity::asFieldOperatorApplication() const -> concealer::FieldOperatorAp
 auto EgoEntity::getCurrentAction() const -> std::string
 {
   const auto state = field_operator_application->getAutowareStateName();
-  return (state.empty() ? "Launching" : state);
+  return state.empty() ? "Launching" : state;
 }
 
 auto EgoEntity::getBehaviorParameter() const -> traffic_simulator_msgs::msg::BehaviorParameter